Fan notepad sang live. Masked singer Xu Yuteng is the fourth installment. In the masked singer will be the fourth installment, Xu Yuteng sang the song "fan memoirs", the song is moving and melodious. Masked Singer" is produced by Jiangsu TV and Canstar production of music suspense guessing reality show, in the program, many singers will mask their faces and sing, and then the guessing team guessed the name of the singer.